Routing Table Report 08:00 +10GMT Wed 14 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 378942
Prefixes after maximum aggregation: 165780
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188719
Total ASes present in the Internet Routing Table: 37682
Prefixes per ASN: 10.06
Origin-only ASes present in the Internet Routing Table: 32448
Origin ASes announcing only one prefix: 15535
Transit ASes present in the Internet Routing Table: 5234
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2616
Unregistered ASNs in the Routing Table: 1049
Number of 32-bit ASNs allocated by the RIRs: 2078
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4115
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 81
Number of addresses announced to Internet: 2518758400
Equivalent to 150 /8s, 33 /16s and 52 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 158276
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90533
Total APNIC prefixes after maximum aggregation: 29930
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87970
Unique aggregates announced from the APNIC address blocks: 38493
APNIC Region origin ASes present in the Internet Routing Table: 4552
APNIC Prefixes per ASN: 19.33
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 631164928
Equivalent to 37 /8s, 158 /16s and 208 /24s
Percentage of available APNIC address space announced: 80.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 145176
Total ARIN prefixes after maximum aggregation: 74356
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117574
Unique aggregates announced from the ARIN address blocks: 48668
ARIN Region origin ASes present in the Internet Routing Table: 14736
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5657
ARIN Region transit ASes present in the Internet Routing Table: 1507
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804499712
Equivalent to 47 /8s, 243 /16s and 177 /24s
Percentage of available ARIN address space announced: 63.9
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 93758
Total RIPE prefixes after maximum aggregation: 51473
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 86083
Unique aggregates announced from the RIPE address blocks: 54913
RIPE Region origin ASes present in the Internet Routing Table: 16180
RIPE Prefixes per ASN: 5.32
RIPE Region origin ASes announcing only one prefix: 8008
RIPE Region transit ASes present in the Internet Routing Table: 2567
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 493981184
Equivalent to 29 /8s, 113 /16s and 142 /24s
Percentage of available RIPE address space announced: 79.6
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36247
Total LACNIC prefixes after maximum aggregation: 7887
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 35895
Unique aggregates announced from the LACNIC address blocks: 18888
LACNIC Region origin ASes present in the Internet Routing Table: 1542
LACNIC Prefixes per ASN: 23.28
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 94659584
Equivalent to 5 /8s, 164 /16s and 100 /24s
Percentage of available LACNIC address space announced: 62.7
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8404
Total AfriNIC prefixes after maximum aggregation: 2060
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6480
Unique aggregates announced from the AfriNIC address blocks: 2068
AfriNIC Region origin ASes present in the Internet Routing Table: 499
AfriNIC Prefixes per ASN: 12.99
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 110
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 30776576
Equivalent to 1 /8s, 213 /16s and 157 /24s
Percentage of available AfriNIC address space announced: 45.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1949 11101 664 Korea Telecom (KIX)
17974 1636 503 38 PT Telekomunikasi Indonesia
7545 1626 303 84 TPG Internet Pty Ltd
4755 1500 385 158 TATA Communications formerly
9829 1170 989 28 National Internet Backbone
9583 1099 81 496 Sify Limited
24560 980 381 164 Bharti Airtel Ltd., Telemedia
18101 964 122 157 Reliance Infocom Ltd Internet
7552 961 1062 11 Vietel Corporation
4808 937 1949 270 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3481 3814 219 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1857 680 121 PaeTec Communications, Inc.
4323 1618 1089 387 tw telecom holdings, inc.
20115 1603 1549 626 Charter Communications
22773 1510 2909 104 Cox Communications Inc.
30036 1448 258 678 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1319 7063 867 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1478 480 15 Corbina telecom
6830 646 1927 412 UPC Broadband
34984 624 132 194 BILISIM TELEKOM
2118 550 99 14 EUnet/RELCOM Autonomous Syste
12479 545 630 48 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
20940 540 173 433 Akamai Technologies European
3320 528 8161 395 Deutsche Telekom AG
3292 481 2106 408 TDC Data Networks
8866 461 134 27 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1721 318 155 Types of queries are: POCs, o
28573 1556 1060 73 Types of queries are: POCs, o
8151 1300 2961 346 Uninet S.A. de C.V.
7303 1240 751 175 Telecom Argentina S.A.
27947 605 73 92 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 551 237 89 Types of queries are: POCs, o
6503 540 434 68 Axtel, S.A.B. de C.V.
11172 529 102 96 Alestra, S. de R.L. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 964 958 13 TEDATA
24863 785 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 158 664 86 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3481 3814 219 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1949 11101 664 Korea Telecom (KIX)
1785 1857 680 121 PaeTec Communications, Inc.
10620 1721 318 155 Types of queries are: POCs, o
17974 1636 503 38 PT Telekomunikasi Indonesia
7545 1626 303 84 TPG Internet Pty Ltd
4323 1618 1089 387 tw telecom holdings, inc.
20115 1603 1549 626 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2950 2737 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1857 1736 PaeTec Communications, Inc.
17974 1636 1598 PT Telekomunikasi Indonesia
10620 1721 1566 Types of queries are: POCs, o
7545 1626 1542 TPG Internet Pty Ltd
28573 1556 1483 Types of queries are: POCs, o
8402 1478 1463 Corbina telecom
22773 1510 1406 Cox Communications Inc.
4755 1500 1342 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
37.1.224.0/21 51059 Brightbox Systems Ltd
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
64.21.192.0/20 11610 Internet Nebraska Corporation
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
Complete listing at http://thyme.rand.apnic.net/london/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:81 /12:238
/13:465 /14:809 /15:1440 /16:12006 /17:6083 /18:10116
/19:20185 /20:27767 /21:28066 /22:37917 /23:35448 /24:197715
/25:11 /26:21 /27:20 /28:153 /29:135 /30:67
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2562 2950 Windstream Communications Inc
6389 2123 3481 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
8402 1453 1478 Corbina telecom
30036 1408 1448 Mediacom Communications Corp
11492 1105 1142 CABLE ONE, INC.
1785 1059 1857 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 968 1510 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:446 2:450 4:15 5:1 6:3 8:360
12:1944 13:1 14:555 15:11 16:3 17:7
20:9 23:72 24:1694 27:1111 31:725 32:62
33:2 34:2 36:4 38:768 40:114 41:2934
42:77 44:3 46:1132 47:3 49:276 50:463
52:13 55:5 56:2 57:42 58:872 59:481
60:339 61:1067 62:921 63:1967 64:4021 65:2302
66:4357 67:2008 68:1182 69:3130 70:914 71:363
72:1775 74:2640 75:431 76:319 77:932 78:869
79:437 80:1147 81:843 82:533 83:528 84:473
85:1168 86:415 87:904 88:342 89:1583 90:248
91:4361 92:540 93:1382 94:1323 95:1093 96:391
97:286 98:785 99:38 101:127 103:529 106:8
107:109 108:97 109:1088 110:670 111:818 112:363
113:485 114:604 115:687 116:861 117:696 118:881
119:1227 120:341 121:648 122:1555 123:1017 124:1295
125:1295 128:281 129:171 130:178 131:570 132:153
133:21 134:218 135:54 136:211 137:148 138:286
139:121 140:456 141:254 142:364 143:386 144:486
145:67 146:469 147:223 148:614 149:270 150:158
151:192 152:443 153:171 154:6 155:397 156:206
157:326 158:155 159:431 160:340 161:204 162:359
163:173 164:518 165:389 166:542 167:458 168:812
169:145 170:824 171:93 172:4 173:1792 174:604
175:405 176:338 177:428 178:1100 180:1200 181:38
182:657 183:250 184:400 185:1 186:1470 187:786
188:945 189:1177 190:5281 192:5932 193:5110 194:3799
195:3361 196:1246 197:174 198:3567 199:4179 200:5442
201:1700 202:8258 203:8416 204:4249 205:2386 206:2583
207:2768 208:4004 209:3540 210:2662 211:1443 212:1988
213:1797 214:817 215:95 216:4904 217:1496 218:563
219:331 220:1216 221:507 222:297 223:246
End of report
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